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Product Description
The IBS-DBM20A is multifunctional Dual Battery System with DC/DC charger technology.
New Alternator technologies like smart alternators or charge-reducing alternators require sophisticated
dual battery systems to function correctly.
The DBM20A can be configured with IGN-Signal (Ignition) for correct detection if the car is running and
charging. 3 different charge levels/battery types with or without an additional equalize mode are user
selectable. The 3 or 4 charge modes such as Bulk / Absorption (with optional Equalize) and Float offer
an effective charge which is superior to a conventional dual battery system.
The 3 main applications are In-Car Charger 12V/12V, In-Car Charger 24V/12V and Trailer Charger
12V/12V.
When used as In-Car Charger (12V/12V) there are different IBS modules which can be combined with
the DBM20A to get special functionality or extra performance.
Before installing the DBM20A identify which alternator type is in use and which charge level the Aux
battery requires.
This model DBM20A enables the adaptation of the measurement, monitoring, control and regulation fun
ctions for Li on-board batteries (LiFePO4 with nominal voltage of approx.
12.8V). Please refer to chapter Configuration during commissioning.
Warning
The installation and the startup process should only be done by people with training and experience in
automotive electrical systems and battery technology.
The DBM is only designed to charge 12V Car batteries, like AGM, Calcium, special Li-Types and lead
acid batteries. Other batteries such as non-rechargeable batteries must not be connected to the DBM.
Some battery types produce explosive gases while charging. Installation specifications from the
manufacturer must be considered.
